Jacaena menglaensis Mu & Zhang, 2020
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publication ID |
https://dx.doi.org/10.3897/zookeys.1144.97073 |
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publication LSID |
lsid:zoobank.org:pub:8DA7D386-3AC7-4FA0-8D6E-22B3F660AF23 |
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persistent identifier |
https://treatment.plazi.org/id/C11E2C92-B170-55F0-B71C-BCA2B507547A |
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treatment provided by |
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scientific name |
Jacaena menglaensis Mu & Zhang, 2020 |
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Jacaena menglaensis Mu & Zhang, 2020 View in CoL
Figs 1 View Figure 1 , 2 View Figure 2
Jacaena menglaensis Mu & Zhang, 2020: 343, figs 1H, 2C, 5D-F (♂).
Material examined.
1 ♂ (IZCAS-Ar 43812): China, Yunnan, Xishuangbanna, Mengla County, Menglun Town , XTBG, Paramichelia baillonii plantation (about 20 years old), 21°54.772'N, 101°16.043'E, 608 m, collected by pitfall traps in leaf litter, 1-15 April 2007, G. Zheng leg GoogleMaps ; 1 ♂ (IZCAS-Ar 43813), same data as previous, but secondary tropical seasonal rain forest, 21°55.428'N, 101°16.441'E, 598 m, 9-13 August 2006 GoogleMaps ; 1 ♂ (IZCAS-Ar 43814), same data as previous, but secondary tropical seasonal rain forest, 21°55.428'N, 101°16.441'E, 598 m, 16-31 July 2007 GoogleMaps ; 1 ♀ (IZCAS-Ar 43815), same data as previous, but secondary tropical seasonal moist forest, 21°54.984'N, 101°16.982'E, 556 m, 1-9 September 2006 GoogleMaps ; 1 ♀ (IZCAS-Ar 43816), same data as previous, but rubber plantation (about 20 years old), 21°54.684'N, 101°16.319'E, 585 m, 4-11 April 2007 GoogleMaps ; 1 ♀ (IZCAS-Ar 43817), same data as previous, but secondary tropical seasonal moist forest, 21°54.718'N, 101°16.940'E, 645 m, 16-31 July 2007 GoogleMaps ; 1 ♀ (IZCAS-Ar 43818), same data as previous, but secondary tropical seasonal moist forest, 21°54.607'N, 101°17.005'E, 633 m, 1-15 June 2007 GoogleMaps .
Diagnosis.
The species resembles J. aspera (cf. Figs 1 View Figure 1 , 2 View Figure 2 with Mu and Zhang 2020: 336, figs 1d-f, 2d-f, 3a-e): the males have a similar embolus and retrolateral tibial apophysis (Fig. 2A-C View Figure 2 ), and the females have a similar spermatheca (Fig. 1F View Figure 1 ). Males can be distinguished by the membranous conductor (Fig. 2A-C View Figure 2 ; vs sclerotized conductor); females by the nearly elliptical copulatory openings (Fig. 1E View Figure 1 ; vs round copulatory openings), and by the laterally sinuous copulatory ducts (Fig. 1F View Figure 1 ; vs laterally vertical copulatory ducts). The species also resembles J. zhui (cf. Figs 1 View Figure 1 , 2 View Figure 2 with Zhang and Fu 2011: 71, figs 1-15 and Mu and Zhang 2020: 345, figs 7a-i, 8a, b): the males have a similar embolus and retrolateral tibial apophysis (Fig. 2A-C View Figure 2 ), and the females have a similar fertilization duct (Fig. 1F View Figure 1 ). Males can be distinguished by the laminar conductor, which is slightly folded apically (Fig. 2A-C View Figure 2 ; vs apically helix-shaped conductor); females by the nearly elliptical copulatory openings (Fig. 1E View Figure 1 ; vs round copulatory openings), by the laterally sinuous copulatory ducts, which medially form three coils (Fig. 1F View Figure 1 ; vs copulatory ducts laterally vertical and medially forming two coils), and by the spermathecae situated in the posterior part of vulva (Fig. 1F View Figure 1 ; vs spermathecae larger, situated in the side of vulva).
Description.
Male (IZCAS-Ar 43812; Figs 1A, B View Figure 1 , 2A-C View Figure 2 ): see Mu and Zhang (2020 figs 1h, 2c, 5d-f) for complete description.
Female (IZCAS-Ar 43815; Fig. 1C, D View Figure 1 ): total body length 8.13: carapace 3.43 long, 2.68 wide; opisthosoma 4.70 long, 3.07 wide. Carapace dark brown, oval, and strongly granulated, with faint radial grooves; fovea pit-like. Eye sizes and inter-distances: AME 0.13, ALE 0.15, PME 0.10, PLE 0.13; AME-AME 0.09, AME-ALE 0.07, PME-PME 0.15, PME-PLE 0.22, ALE-PLE 0.11; MOA 0.38 long, anterior width 0.31, posterior width 0.37. Chelicerae dark reddish brown, with three promarginal teeth, two retromarginal teeth. Endites and labium reddish brown, apically with a narrow membranous area; endites constricted in middle, converging apically. Labium 1.11 times longer than wide. Sternum and legs reddish brown. Leg spination as shown in Table 1 View Table 1 . Leg measurements: I 9.06 (2.57, 0.99, 2.37, 2.02, 1.11); II 7.87 (2.30, 0.83, 1.98, 1.67, 1.09); III 6.77 (1.99, 0.72, 1.51, 1.52, 1.03); IV 10.10 (2.71, 1.03, 2.27, 2.66, 1.43). Opisthosoma ovoid, medially with four reddish apodemes, posterior half with four faint chevrons; venter reddish brown anteriorly and with two oblique pale stripes converging posteriorly. Spinnerets yellowish.
Epigyne (Fig. 1E, F View Figure 1 ). Epigynal plate length/width: 1.03/1.87, medially with two copulatory openings nearly elliptic. Vulva with copulatory ducts, laterally sinuous and tapered off, medially curved, forming three coils; spermathecae spherical, separated by more than their diameter from each other, situated in the posterior part of vulva; fertilization ducts pointing laterally.
Variations.
Males: total body length 6.15-6.84. Females: total body length 7.21-8.83.
Distribution.
China (Yunnan, type locality; Fig. 11 View Figure 11 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Jacaena menglaensis Mu & Zhang, 2020
| Lu, Ying, Chu, Chang, Li, Shuqiang & Yao, Zhiyuan 2023 |
Jacaena menglaensis
| Mu & Zhang 2020 |